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1 /*
2  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 
26 #ifndef MediaFragmentURIParser_h
27 #define MediaFragmentURIParser_h
28 
29 #include "platform/weborigin/KURL.h"
30 #include "wtf/Vector.h"
31 
32 namespace blink {
33 
34 class KURL;
35 
36 class MediaFragmentURIParser FINAL {
37 public:
38 
39     MediaFragmentURIParser(const KURL&);
40 
41     double startTime();
42     double endTime();
43 
44     static double invalidTimeValue();
45 
46 private:
47 
48     void parseFragments();
49 
50     enum TimeFormat { None, Invalid, NormalPlayTime, SMPTETimeCode, WallClockTimeCode };
51     void parseTimeFragment();
52     bool parseNPTFragment(const LChar*, unsigned length, double& startTime, double& endTime);
53     bool parseNPTTime(const LChar*, unsigned length, unsigned& offset, double& time);
54 
55     KURL m_url;
56     TimeFormat m_timeFormat;
57     double m_startTime;
58     double m_endTime;
59     Vector<std::pair<String, String> > m_fragments;
60 };
61 
62 } // namespace blink
63 
64 #endif
65